Hi guys,

So before I install my new magnaflow exhaust to my stock cat. I know the bolts size are M12-1.25, but I was wondering if 25MM is long enough? If I remember correctly are the nuts welded behind the cat?

Hopefully I get an answer. Thanks everyone

 

im confused here, y not just reuse the bolts? the nuts are welded on the cat piece.
25mm would be very close.
on a side note if u want to pm me, where and how much did you get the magnaflow for? would u mind weighing it for me?

 

Nuts are not welded. I reused the stock nuts and bolts when I installed my magna flow.

 

I'm not sure the length, I want to THINK I used a 25mm and it was fine. You can always go to a 30-40 to be safe. I personally replaced the hardware with G8/10 Stainless to make it that easier when needing to work underneath the car. You wouldn't believe how many times you'd need to remove an exhaust piece to do something.